The design of this mug is borrowed from Thor Heyerdahl's Kon Tiki boat, which used the design of a South American sun god, Kon Tiki. Forehead has three sunray-like dashes, lips are two horizontal lines. This mug appears to be copied off of the OMC Kon-Tiki Mug Tall, but is lacking the repeated vertical line pattern on the face. It may well have been designed for home hobbyist use after the earlier Kon-Tiki mugs. Reads "Johnny Sens" and gives year on base at back.